Local UC California professor wins the Nobel Prize in medicine and physiology

A U.S.-based trio of scientists won the Nobel Prize in Physiology or Medicine for discovering the intricate machinery that transports molecules inside a cell. Gautam Naik discusses the impact of this finding on biology and medicine with cell...

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What's it like (for your health or to your surprise) to suddenly receive a phone call in the middle of the night or any other time, unexpectedly, and be told by a voice with a foreign accent that you've just won the Nobel Prize in medicine and physiology--based on your work that began by researching yeast?

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A local California professor has won the Nobel Prize in medicine and physiology a few months ago. Have you ever thought why the University of California, Berkeley has had 22 Nobel Laureates so far? This time,

Randy W. Schekman, professor of molecular and cell biology at the University of California, Berkeley, has won the 2013 Nobel Prize in Physiology or Medicine for his role in revealing the machinery that regulates the transport and secretion of proteins in our cells. He shares the prize with James E. Rothman of Yale University and Thomas C. Südhof of Stanford University, according to the October 7, 2013 news release by Robert Sanders, "Randy Schekman awarded 2013 Nobel Prize in Physiology or Medicine."

Discoveries by Schekman about how yeast secrete proteins led directly to the success of the biotechnology industry, which was able to coax yeast to release useful protein drugs, such as insulin and human growth hormone. How often does one receive the Nobel Prize while teaching graduate students at a public university?

The three scientists’ research on protein transport in cells, and how cells control this trafficking to secrete hormones and enzymes, illuminated the workings of a fundamental process in cell physiology, notes the news release.Yeast research is a good way to research how those tiny cells control their purpose and direction, managing the job they know they have to accomplish.

Schekman is UC Berkeley’s 22nd Nobel Laureate, and the first to receive the prize in the area of physiology or medicine

In a statement, the 50-member Nobel Assembly lauded Rothman, Schekman and Südhof for making known “the exquisitely precise control system for the transport and delivery of cellular cargo. Disturbances in this system have deleterious effects and contribute to conditions such as neurological diseases, diabetes, and immunological disorders.”

“My first reaction was, ‘Oh, my god!’ said Schekman, 64, who was awakened at his El Cerrito home with the good news at 1:30 a.m. “That was also my second reaction," the news release stated.

Schekman and Rothman separately mapped out one of the body’s critical networks, the system in all cells that shuttles hormones and enzymes out and adds to the cell surface so it can grow and divide

This system, which utilizes little membrane bubbles to ferry molecules around the cell interior, is so critical that errors in the machinery inevitably lead to death. “Ten percent of the proteins that cells make are secreted, including growth factors and hormones, neurotransmitters by nerve cells and insulin from pancreas cells,” said Schekman, a Howard Hughes Medical Institute Investigator and a faculty member in the Li Ka Shing Center for Biomedical and Health Sciences.

In what some thought was a foolish decision, Schekman decided in 1976, when he first joined the College of Letters and Science at UC Berkeley, to explore this system in yeast

In the ensuing years, he mapped out the machinery by which yeast cells sort, package and deliver proteins via membrane bubbles to the cell surface, secreting proteins important in yeast communication and mating. Yeast also use the process to deliver receptors to the surface, the cells’ main way of controlling activities such as the intake of nutrients like glucose.

In the 1980s and ’90s, these findings enabled the biotechnology industry to exploit the secretion system in yeast to create and release pharmaceutical products and industrial enzymes. Today, one-third of the insulin used worldwide by diabetics is produced by yeast, and the entire world’s supply of the hepatitis B vaccine is from yeast. Both systems were developed by Chiron Corp. of Emeryville, Calif., now part of Novartis International AG, during the 20 years Schekman consulted for the company.

Various diseases, including some forms of diabetes and a form of hemophilia, involve a hitch in the secretion system of cells, and Schekman is now investigating a possible link to Alzheimer’s disease

“Our findings have aided people in understanding these diseases,” said Schekman, according to the news release. Based on the machinery discovered by Schekman and Rothman, Südhof subsequently discovered how nerve cells release signaling molecules, called neurotransmitters, which they use to communicate. you also can check out the press conference video: Part 1 and Part 2.

For his scientific contributions, Schekman was elected to the National Academy of Sciences in 1992, received the Gairdner International Award in 1996 and the Lasker Award for basic and clinical research in 2002.

He was elected president of the American Society for Cell Biology in 1999. Schekman previously received the Otto Warburg Medal of the German Society for Biochemistry and Molecular Biology, which is considered the highest German award in the fields of biochemistry and molecular biology.

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Nutrition, health, and media culture writer, Anne Hart is the author of more than 4,000 online articles, 91 paperback books, including numerous novels, and holds a graduate degree in English/creative writing.

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